bump: update to version 1.5.1

Author: jfut

README.md

@@ -8,7 +8,7 @@ Fast update of IP set for ipset.
 ## Usage
 
 ```bash
-ipset-fast-update 1.5.0
+ipset-fast-update 1.5.1
 
 Usage:
     ipset-fast-update -n SET_NAME [-i PATH]... [-u URL]... [-e EXCLUDE_PATH]... [OPTIONS...]

ipset-fast-update

@@ -13,7 +13,7 @@
 
 set -euo pipefail
 
-VERSION="1.5.0"
+VERSION="1.5.1"
 
 ALERT_THRESHOLD_RATIO="80"
 IS_TEMPORARY="0"